Apparatus for deodorizing fats or oils



(No Modl.) 2Sheets-Sheet 1.

J. H. FILBERT.

APPARATUS FOR DEODORIZING FATS 0R OILS.

No. 585,792. Patented Mar. 12, 1895.

s INVENTUR 5.7% m /&

ATTEIIRNEZY WITNEE'EEE v (No Model.) 2 Sheets- Sheet 2.

J. H FILBERT. APPARATUS FOR D'EODORIZING FATS OR OILS. No. 535,792.Patented Mar. '12,1895..

WITNESSES-I I INVEN'I'EIR l .fl. fl'vut,

ATT 13 RN EY il'NrTEn STATES.

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JOHN H. FILBERT, OE BALTIMORE, MARYLAND, AssreNoR TO THE EILBERTMANUFACTURING COMPANY OF BALTIMORE CITY, or MARYLAND.

APPARATUS FOR DEODORIZING FATS OR OILS.

SPECIFICATION forming part of Letters Patent No. 535,792, dated March12, 1895.

Application filed December 24, 1894. Serial No. 532,844. (No modeLl T0OZZZ whom it may concern.-

Be it known that I, JOHN H. FILBERT, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented certainnew and useful Improvements in an Apparatus for Deodorizing Fats orOils, of which the following is a specification.

This invention relates to certain improvemlents in apparatus fordeodorizing fats and 01 s.

The object of this apparatus is to eliminate from fats and oils thosegases held in suspension which produce objectionable odors.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a longitudinal vertical section of the apparatus. Fig. 2 isa view showing a cross-section of one part of the apparatus and a sideView of another part. Fig. 3 is a perspective view of the shaft andrevoluble blades of the stand-pipe.

The letter A designates an inside tank or cylinder, B a similar shapedoutside or inclosing tank, and O a water-space between the two tanks.These tanks are made of suitable metal plates properly riveted together,with a circular head, d, at each end of the inner tank, and a circularhead, d, at each end of the outer tank.

A longitudinal shaft, E, extends through the center ofthe inside tank.One end of this shaft has a bearing, f, secured on the inner side of onehead, (1, of the inner tank, and the other end passes through a bearing,f, which is fitted in the space between the two heads, d, d. This end ofthe shaft turns in a stuffing box, 9, attached to the bearing, and onthe projecting end is a pulley, h, over which a driving belt may beplaced to impart motion to the shaft. Three separate paddle wheels, I,in the present instance, are mounted on this shaft within the innertank. Each of these wheels comprises radial arms made in pairs-two arms,j, j, which overlap each other and at the same time clamp the shaft, E,the two lapped arms being secured together by bolts, It, and made fastto the shaft by a set-screw, k. In Fig. 1 it will be seen that blades orpaddles, Z, extending parallel with the shaft, E, are secured to two ofthese radial arms. Each wheel thus has four paddles,

'ning the transverse way. The paddles may have holes, Z, or not. Threewheels thus constructed are mounted on the shaft, E, and the wheels areplaced so that the position of the .paddles, Z, of one wheel shall notbe in the same plane as those of an adjoining wheel. This arrangementserves to stir and agitate the oil thoroughly and at the same time.requires less power to operate the shaft. Of course the paddles andarms may have a construction varied from that shown.

A water-supply pipe, m, is attached to the lower side or bottom of theouter tank, B, and delivers heated water to the space, 0, between thetwo tanks, and a draw-off or waste water 7o pipe, n, is attached to theupper or top side of the outer tank. Each pipe has a valve, m, 91,respectively. By this means a supply of water, warmed or heated toanydesired temperature, may be maintained within the space orwater-jacket, and thus the oil contents of the inner tank, A, may bekept in the de sired condition of fluidity while under treatment.

A supply pipe, 0, passes through the plates of both tanks and a block,0, in the space, 0, and this supply-pipe serves for charging the innertank with fats and oils to be treated. Any suitable device, 0', may beemployed to close the supply pipe.

The tanks have on the exterior an inclined neck or tubulure, P, providedwith a baseblock, P, which fitsinto and fills the space, 0. Thisinclined hollow neck is on top and near one end of the tank and theinclination is such as to point'downward and also toward the other endof the tank. A pipe, 19 is attached to this inclined neck and isprovided with a valve, 19 This pipe and neck communicate from a suitablesource of air-supply, such as 5 a rotary blower or air-pum p, (notshown) and deliver a moderate air-blast into the innertank. An outletfor the escape of this air and the gases eliminated from the fats andoils, comprises a stand-pipe, R, fitted to the tanks too and openingthrough a block, 1, in the space,

0 ,into the inner tank. Exteriorly this standpipe, or air-outlet, R, hasaround it a steam coil, S, provided with valves, .9, to regulate thesupply and discharge of steam. This heater coil serves to maintain anydesired degree of warmth or heat in the stand-pipe, for a purpose to bementioned shortly.

A vertical shaft, t, is suitably mounted in the pipe, R, and is providedwith a number of small twisted blades, u. These numerous twistedblades,of which the drawings show six, though in practice I prefer touse a larger number, say ten,all revolving in the upward passage throughthe pipe, serve two purposes: first, they operate to stop or check thespray and small particles of oil and fat that would otherwise pass outwith the escaping air, and, second, they serve to scrape or remove fromthe inner wall of the stand-pipe the fatty spray which finds lodgmentthereon. The best results both for stopping the spray of fat and oil andfor scraping this pipe and freeing it of the spray which is constantlylodging on its walls, are obtained by having these twisted blades inpairs-one blade diametrically opposite the other-and mounting theseveral pairs one above another on the shaft, 25, so that the two bladesof one pair will project in a direction transversely to that of the twoblades of the next adjoining pair. This relative position of the bladesin the pipe allows of upward spaces, or upward passages, for the air toescape, and yet presents cross barriers in said passages on which thespray of fat and oil will lodge. As the steam coil, 8, around thestand-pipe will keep the latter, and also the shaft and blades, warm,the lodgment of fatty spray referred to will be continually dropping offand down into the mass of fat and oil in the tank.

A pulley t, on the upper end of the shaft serves for a driving belt tocause the shaft and blades to revolve.

In the bottom of the tank are two openings and discharge nozzles, 11, w.Each opening is through a block, U', to, respectively in the space, 0.Asuitable valve, or, is on each 1102- zle. These serve to draw off theoil after it has been treated.

A suitable man hole is in the top of the tank and this hole is closed bya cover, Y, of well-known form.

The operation of this apparatus is as follows: The fats or oils to betreated are placed in the tank until it is about half full only. Thewarm water jacket keeps the oil at the desired temperature best suitedfor treatment. The shaft, E, and paddles, Z, rapidly revolving agitateand break up the mass of oil and cause spray which fills the upperportion of the tank. Now a blast of air entering at the inclined neck,P, acting on the agitated oil aerates it and also absorbs and takes upfrom the spray the liberated gages which were in the oil. Then this air,charged with the odors and gases, passes out at the stand-pipe, R,while, the revolving twisted blades, u, without hindering the escape ofair, prevent the fat spray from passing out, and also keep thestand-pipe scraped and free from any accumulation of fat. Oil thustreated will be free of odor.

Having thus described myinvention, what I claim as new, and desire tosecure by Letters Patent, is

1. In an apparatus for treating fats and oils, the combination of twoclosed tanksone within the other, and a water space between the two; ashaft in the inner tank; separate paddle wheels on the shaft within thetank; a neck or tubulure, P, for an air blast and entering from theexterior into the inner tank; a stand-pipe, R, for the escape of airfrom the inner tank; and revoluble blades in said stand-pipe. v

2. In an apparatus for treating fats and oils, the combination of twoclosed tanksone within the other, and a water-space between the two; aninlet for an air-blast to enter the inner tank; a stand-pipe for theescape of air from the inner tank; a steam-coil around the stand-pipe;and revoluble blades in said stand-pipe.

In testimony whereof I affix my signature in the presence of twowitnesses.

JOHN H. FILBERT.

Witnesses:

GHARLEs.B. MANN, J r., O. CALVERT I-IINEs.

